View Compilation Error

424924_0_0_9065.cpp: In function `int insert(trie&, char*)':
424924_0_0_9065.cpp:59: error: `max' undeclared (first use this function)
424924_0_0_9065.cpp:59: error: (Each undeclared identifier is reported only once for each function it appears in.)
424924_0_0_9065.cpp: In function `int main()':
424924_0_0_9065.cpp:108: error: `max' undeclared (first use this function)